Electric Field-Assisted In Situ Precise Deposition of Electrospun γ-Fe2O3/Polyurethane Nanofibers for Magnetic Hyperthermia
| Autor: | Seeram Ramakrishna, Chao Song, Yun-Ze Long, Xiao-Xiong Wang, Fu Jie, Luo Weiling, Guangdi Nie, Jun Zhang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Auxiliary electrode
Materials science Electrospinning In situ precise deposition 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Magnetic hyperthermia Nanofiber Heat generation Electrode lcsh:TA401-492 General Materials Science lcsh:Materials of engineering and construction. Mechanics of materials Fiber Composite material 0210 nano-technology Superparamagnetism |
| Zdroj: | Nanoscale Research Letters, Vol 13, Iss 1, Pp 1-11 (2018) |
| ISSN: | 1931-7573 |
| DOI: | 10.1186/s11671-018-2707-y |
| Popis: | A facial electrospinning method of in situ precise fabricating magnetic fibrous membrane composed of polyurethane (PU) nanofibers decorated with superparamagnetic γ-Fe2O3 nanoparticles with simultaneous heat generation in response to alternating magnetic field (AMF) is reported. In this method, a conical aluminum auxiliary electrode is used to regulate the electrostatic field and affect the process of electrospinning for the in situ rapid and precise deposition of electrospun γ-Fe2O3/PU fibers. The auxiliary conical electrode can extend the jet stabilization zone of the precursor solution four times longer than that of without auxiliary electrode, which can achieve the precise control of the fiber deposition area. Moreover, the electrospun composite fibrous membranes show a rapid temperature increase from room temperature to 43 °C in 70 s under the AMF, which exhibits faster heating rate and higher heating temperature compared to the samples fabricated without the assist of the auxiliary electrode. The present results demonstrate that the in situ precise electrospinning with the help of an auxiliary conical electrode has the potential as a manipulative method for preparing magnetic composite fibers as well as magnetic hyperthermia of cancer therapy. |
| Databáze: | OpenAIRE |
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